How to seach for word "login" in documents

Cannot find my “logins” doc with names, emails, logins, passwords, etc. Can I do a search through my LibreOffce documents to find it? Suggestions?d

As I know LibreOffice doesn’t search in the documents. I suggest to use Regain or Recoll both of them search into the files

@desert_gold – Did @mbnoimi’s Answer help you find your missing “logins” document? If so, please mark his answer as correct.